Improvement in governor cut-off gears



Patented September 2,1873.

's mm'ss H. H. MEYER.

Governor Gut-01f Gears.

" V AM PHOIO-UTHJMAP/f/C (a MK/USADRNE UNITED STATES PATENT FFICE.

HERMAN H. MEYER, OF DENVER, COLORADO TERRITORY.

IMPROVEMENT IN GOVERNOR CUT-OFF GEARS.

Specification forming part of Letters Patent No. 142,491, dated September 2, 1873 application filed April 9, 1873.

To all whom it may concern:

Be it known that I, HERMAN H. MEYER, of Denver, in the county of Arapahoe and Territory of Colorado, have invented a certain new and Improved Governor Out-Off Gear, of

which the following is a specification:

Figure 1 is a sectional side elevation of my improved cut-off gear, and Fig. 2 a vertical transverse section of the same on the line C 0, Fig. 1.

Similar letters of reference indicate correspondin g parts.

The object of this invention is to produce a very simple, positive, and quick cut-off gear for steam-engines; and the invention consists in connecting the eccentricrrod of the engine and the valve-rod of the same with opposite ends of a vibrating beam, with which the governor is also connected, and which is hung in a frame that is vibrated by the action of the eccentric-rod, so that, when the governor raises or lowers its connection with said beam, the vibratory motion imparted to the valve-rod will thereby be varied in the desired manner by moving the connection of the valve-rod and eccentric-rod nearer to or farther away from the pivot of the aforementioned vibrating frame. In this manner the weight of the eccentric and valve rod is caused to rest on the bearing of the beam, and is thereby balanced to the action of the governor, and, by connecting the two rods to the aforementioned beam, but very little force from the governor is required to advance the cut-01f, as the distance through which the governor has to move the valve-rod is but small and the apparatus consequently very sensitive.

In the accompanying drawing, the letters A and B represent two slotted posts or arms secured to a rock-shaft, (J, which has its bearings in the bed-plate of the engine, about midway between the cylinder and main shaft.

that are extended from the rod H, as clearly shown in Fig. I. The valve-rod or eccentricrod may, either one of them, be connected to the governor-rod L, or such governor connection may. be directly obtained with one of the slides D E. If the speed of the engine changes, the governor raises or lowers its connection, and thereby carries the valve-rod andblock E, when connected therewith, nearer to or farther away from the center of the rock-shaft 0, thereby varying the stroke of the valve in the desired manner, and, at the same time that the governor pushes down or raises the valve-rod, the eccentric-rod is moved farther away from, or nearer to, the center of the rock-shaft, thus varying the stroke of the valve still more effectively. The object of the invention is thus fully attained.

What is here claimed, and desired to be socured by Letters Patent, is-

The combination of the eccentricrod I, slide D, beam F, and slide E with the valve-rod J and governor-connection L, when the beam F, connecting with the slides D E, is hung in a vibrating frame, A B, for operation, substantially as described.

HERMAN H. MEYER.

Witnesses F. JENSEN, JOHN W. WEBSTER. 

